JPS6121207Y2 - - Google Patents

Description

[Detailed explanation of the invention] In the process of winding green veneer for plywood using a reeling machine, rewetting adhesive tape (hereinafter referred to as tape) is inserted and pasted at the same time for side reinforcement during winding. However, due to the convenience of later processing of the plywood, it is desirable to insert and paste it just at the edge of the raw veneer, and on the other hand, if the tape is inserted incorrectly or if the tape is not raw during insertion. There is a strong demand to eliminate all cases of tape not being inserted due to it coming off the edge of the board. However, with the tape inserted into the edge of the former,
Eliminating failures in inserting the tape into the edge portion and eliminating tape detachment from the edge portion are antithetical, and it is extremely difficult to be satisfied with both.

The present invention was developed to solve the above problem, and the tape fed out from the outlet of the tape insertion section, which consists of a belt conveyor that sandwiches and conveys the tape with upper and lower belts, is inserted into the winding section of the green veneer. By blowing air in the lateral direction at the beginning, the material is inserted inward from the edges of the green veneer, ensuring its insertion, and then inserted into the green veneer winding section. After the tape has been inserted, a concave tape insertion guide that slides from the exit of the tape insertion section to near the winding section ensures that the tape is inserted at the very edge of the specified edge (raw veneer). It is something.

The structure of the present invention will be explained below based on its embodiments with reference to the drawings.

As shown in the figure, the present invention consists of a special concave tape insertion guide 3 and an air blowing nozzle 7.

The tape insertion guide 3 has a deformed concave surface shape as shown in FIG. In addition, after the tape 2 is inserted into the winding 10 of the green veneer, it slides in the direction of arrow A until close to the surface of the winding 10, and while the tape continues to be inserted, the winding 10
The structure is such that the tape gradually retreats as the tape is wound up, and when insertion stops due to tape cutting, etc., it retreats to the old position.

Next, as shown in FIG. 2, the air nozzle 7 is designed to operate only when the tape 2 is started to be inserted diagonally from the upper side into the green veneer take-up 10, the winding roll 9, and the nip portion. Instead of operating the air nozzle 7, a structure may be considered in which the tape insertion section 1 is moved inward only when tape insertion is started.

Due to the above structure, when using the tape 2
When the tape is fed out from the outlet of the tape insertion section 1, which is a belt conveyor that holds and conveys the tape between upper and lower belts, its tip is swept away in the direction of arrow B by the air flow blown out from the air nozzle 7, as shown in FIG.ゝ, it is inserted inward from the edge of the green veneer 8. Next, when the tape 2 is completely inserted into the winding 10, the tape insertion guide 3 starts sliding in the direction of arrow A, as shown in FIG.
0, and move the tape 2, which is at the position shown by the solid line as shown in FIG. (near the edge) can be inserted accurately. The tape 2 is fed out from the tape insertion section 1 when it is inserted into the winding 10, and is then pulled out by rotation of the winding 10.

Next, when the tape 2 is cut and tape insertion is interrupted, or when the original tape is replaced with a new one, the tape insertion guide 3 retreats and returns to the old position, and the newly fed tape is inserted into the winder 10. Then, the tape insertion guide 3 slides close to the surface of the winding 10 to shift the tape insertion position to the correct position, thus making it possible to insert the tape just at the edge without any tape being left uninserted.

[Brief explanation of the drawing]

1, 2, and 3 are diagrams showing embodiments of the present invention, in which 1 is a tape insertion portion, 2 is a tape, and 3 is a diagram showing an embodiment of the present invention.
3 is a tape insertion guide, 3' is a recess, 4 is a rack gear, 5 is a pinion gear, 6 is a motor, 7 is an air nozzle, 8 is a raw veneer, 9 is a winding roll, and 10 is a winder for winding the raw veneer.

Claims (1)

[Scope of utility model registration request] A retractable concave tape insertion guide with a reciprocating mechanism consisting of a rack and pinion gear is installed at the exit of a tape insertion section consisting of a belt conveyor that conveys raw veneer tape (hereinafter referred to as tape) between upper and lower belts. An automatic tape insertion device for raw veneer tape, which is characterized by an air nozzle that has the function of blowing air inward from the lateral direction towards the reel of the veneer take-up part and the nip part of the take-up roll. Tape insertion mechanism in the section.